先导式水击泄压阀设定压力关键影响因素确定与验证  

Determination and verification of key factors influencing the set pressure of pilot-operated surge relief valve

作　　者：陈悦 段峰波 CHEN Yue;DUAN Fengbo(School of Mechatronics and Vehicle Engineering,Chongqing Jiaotong University;Zigong New Dipper Valve Co.Ltd.)

机构地区：[1]重庆交通大学机电与车辆工程学院 [2]自贡新地佩尔阀门有限公司

出　　处：《油气储运》2024年第7期833-839,共7页Oil & Gas Storage and Transportation

摘　　要：【目的】先导式水击泄压阀是用于输油管道防止水击压力破坏的关键设备,研究先导式水击泄压阀设定压力的影响因素有助于准确控制先导式水击泄压阀的设定值。【方法】从先导式水击泄压阀的结构组成与工作原理入手,分别讨论了弹簧力、摩擦力、导阀芯与导阀座密封结构、导阀活塞对先导式水击泄压阀设定压力的影响,得出先导式水击泄压阀设定压力的关键影响因素是导阀弹簧与导阀活塞的配置,并提出确保先导式水击泄压阀设定压力精度的主要措施,建立了试验系统对相关结果进行验证。【结果】当导阀弹簧选定时,在一定范围增大导阀活塞面积有利于提高先导式水击泄压阀设定压力的整体精度;当活塞面积与弹簧不变时,设定压力越大,设定压力精度越高;当导阀活塞面积一定时,增大弹簧力可使先导式水击泄压阀可调整的设定压力范围扩大。在试验验证测试中,通过配置不同的导阀活塞与不同的弹簧,得出在设定压力不变的条件下,随着活塞面积增大,先导式水击泄压阀实际起跳压力越接近设定压力,设定压力精度越高;在活塞大小不变的条件下,设定压力越高,先导式水击泄压阀实际起跳压力越接近设定压力,设定压力精度越高。【结论】为了进一步提升先导式水击泄压阀设定压力的设定精度,建议在工程应用中,结合实际优选弹簧与活塞结构、材质并进行优化组合。[Objective]Pilot-operated surge relief valves play a critical role in safeguarding oil pipelines against surge pressure-induced damage.Therefore,investigating the factors affecting their set pressures is essential for precise control over their set values.[Methods]Analyzing the structural composition and operational mechanism of pilot-operated surge relief valves,this study investigated the influential factors of their set pressures.It explored influences such as spring force,friction force,sealing structures between the guide valve core and guide valve seat,and pilot valve piston configurations.Specifically,the configurations of springs and pistons were identified as critical influencing factors.Drawing from these insights,the study proposed key measures for ensuring precision in setting the pressures of pilotoperated surge relief valves.Additionally,an experimental system was established to validate the analysis results.[Results]When choosing a specific pilot valve spring,enlarging the piston area of the pilot valves within a specified range resulted in enhanced overall accuracy in the set pressures of the pilot-operated surge relief valves.Maintaining a constant piston area and the chosen spring unchanged,a higher set pressure was proportionate to increased set pressure accuracy.With a consistent pilot valve piston area,elevating the spring force broadened the adjustable set pressure range of the pilot-operated surge relief valves.Subsequent experimental verification was conducted using different pilot valve piston and spring configurations.With set pressures held constant,the actual opening pressures of the pilot-operated surge relief valves converged closer to their set pressures as the piston area increased,signaling improved accuracy in the set pressures.Conversely,at constant piston sizes,higher set pressures resulted in closer alignment of the actual valve opening pressures with their set values,reflecting enhanced accuracy in the set pressures.[Conclusion]For enhanced accuracy in the set pressures of pi

关 键 词：输油管道 先导式水击泄压阀 设定压力 水击 密封 

分 类 号：TE89[石油与天然气工程—油气储运工程]